Application: dngconverter (4.12.0)
KDE Platform Version: 4.14.16
Qt Version: 4.8.7
Operating System: Linux 4.4.0-146-generic x86_64
Distribution: Ubuntu 16.04.6 LTS

-- Information about the crash:
- What I was doing when the application crashed: I clicked on the filename of the NEF (Nikon D810's RAW format) file in Dolphin, and it opened DNG converter.  I didn't change any settings, just clicked the Convert button, and the app immediately crashed.

- Custom settings of the application:  None. All settings left at default.

The crash can be reproduced every time.

-- Backtrace:
Application: DNG Image Converter (dngconverter), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f12b3344980 (LWP 10402))]

Thread 6 (Thread 0x7f128ffff700 (LWP 10410)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f12b16b13a6 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007f12b2690c9c in ?? () from /usr/lib/libthreadweaver.so.4
#3  0x00007f12b2693993 in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007f12b26924ef in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#5  0x00007f12b16b0e3c in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f12b05036ba in start_thread (arg=0x7f128ffff700) at pthread_create.c:333
#7  0x00007f12af99841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7f129d95c700 (LWP 10407)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f12b16b13a6 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007f12b2690c9c in ?? () from /usr/lib/libthreadweaver.so.4
#3  0x00007f12b2693993 in ?? () from /usr/lib/libthreadweaver.so.4
#4  0x00007f12b26939ac in ?? () from /usr/lib/libthreadweaver.so.4
#5  0x00007f12b26924ef in ThreadWeaver::Thread::run() () from /usr/lib/libthreadweaver.so.4
#6  0x00007f12b16b0e3c in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f12b05036ba in start_thread (arg=0x7f129d95c700) at pthread_create.c:333
#8  0x00007f12af99841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7f129e1af700 (LWP 10406)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f12b16b13a6 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007f12b2b38a14 in KDcrawIface::RActionThreadBase::run() () from /usr/lib/libkdcraw.so.23
#3  0x00007f12b16b0e3c in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007f12b05036ba in start_thread (arg=0x7f129e1af700) at pthread_create.c:333
#5  0x00007f12af99841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7f129e9b0700 (LWP 10404)):
#0  0x00007f12af98c74d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007f12aba8238c in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f12aba8249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f12b17f12ce in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007f12b17bf18f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#5  0x00007f12b17bf4f5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#6  0x00007f12b16ae549 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#7  0x00007f12b179f223 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#8  0x00007f12b16b0e3c in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#9  0x00007f12b05036ba in start_thread (arg=0x7f129e9b0700) at pthread_create.c:333
#10 0x00007f12af99841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7f129f1b1700 (LWP 10403)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007f12b16b13a6 in QWaitCondition::wait(QMutex*, unsigned long) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#2  0x00007f12b28d776e in KIPIPlugins::KPRawThumbThread::run() () from /usr/lib/digikam/libkipiplugins.so.4.12.0
#3  0x00007f12b16b0e3c in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#4  0x00007f12b05036ba in start_thread (arg=0x7f129f1b1700) at pthread_create.c:333
#5  0x00007f12af99841d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7f12b3344980 (LWP 10402)):
[KCrash Handler]
#6  0x00007f12b0be57f9 in QPixmap::isNull() const () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#7  0x00007f12b0be662b in QPixmap::copy(QRect const&) const () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#8  0x00007f12b0be737f in QPixmap::QPixmap(QPixmap const&) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#9  0x00007f12b22c2a58 in KPixmapSequence::frameAt(int) const () from /usr/lib/libkdeui.so.5
#10 0x00007f12b28e91e1 in KIPIPlugins::KPImagesList::slotProgressTimerDone() () from /usr/lib/digikam/libkipiplugins.so.4.12.0
#11 0x00007f12b17d5010 in QMetaObject::activate(QObject*, QMetaObject const*, int, void**) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#12 0x00007f12b17dac83 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#13 0x00007f12b0b06fdc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#14 0x00007f12b0b0df16 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#15 0x00007f12b224264a in KApplication::notify(QObject*, QEvent*) () from /usr/lib/libkdeui.so.5
#16 0x00007f12b17c090d in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#17 0x00007f12b17f3780 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#18 0x00007f12b17f08f1 in ?? () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#19 0x00007f12aba82197 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#20 0x00007f12aba823f0 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f12aba8249c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f12b17f12ce in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#23 0x00007f12b0bb4616 in ?? () from /usr/lib/x86_64-linux-gnu/libQtGui.so.4
#24 0x00007f12b17bf18f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#25 0x00007f12b17bf4f5 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#26 0x00007f12b17c54b9 in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQtCore.so.4
#27 0x000000000040e899 in ?? ()
#28 0x00007f12af8b1830 in __libc_start_main (main=0x40e5c0, argc=6, argv=0x7ffc0e9e55d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffc0e9e55c8) at ../csu/libc-start.c:291
#29 0x000000000040ebf9 in _start ()

Possible duplicates by query: bug 246632.

Reported using DrKonqi